1. Practice mental arithmetic: Practicing mental arithmetic often can improve your number perception and calculation speed. Try to do simple addition, subtraction, multiplication and division in your mind, instead of using paper and pencil.

2. Master basic calculation rules and skills: Being familiar with basic calculation rules and skills can help you calculate faster. For example, you know how to decompose numbers to simplify calculations, or you know how to use squares and cubes to speed up calculations.

3. Use mnemonic method: Using mnemonic method can help you remember some commonly used mathematical formulas and results, thus reducing calculation time. For example, the result of memorizing the square number is 4,9, 16, etc.

4. Avoid errors: reducing calculation errors can reduce calculation time. Check your calculation process carefully to make sure that you have not missed any steps or made any mistakes.

5. Use a calculator: Although using a calculator may not be the fastest way, it can help you get accurate results quickly. Especially for complex calculations or a large number of calculations, using calculators can save time and energy.

6. Practice oral calculation: You can improve your calculation speed and accuracy through oral calculation practice. Try to quickly calculate some simple math problems in your mind, gradually increasing the difficulty.

7. Decomposition problem: decompose a complex problem into simpler sub-problems and then solve these sub-problems one by one. This can simplify the calculation process and improve efficiency.

8. Use patterns and laws: Observing patterns and laws in mathematical problems can help you find faster calculation methods. For example, if there are multiple identical numbers in a question, you can try to extract them and combine them.

9. Practice a variety of problem-solving methods: Being familiar with different problem-solving methods and strategies can help you find solutions faster when you encounter different types of problems. Study and practice all kinds of problem-solving skills hard to improve your computing ability.

10. Stay calm and focused: It is very important to stay calm and focused when doing mathematical calculations. If you feel nervous or distracted, you may make more mistakes or take longer to complete the calculation. Try to concentrate and relax, so that the calculation is faster.